www.inkproducts.com is the cheapest place to get ink. The use O.E.M. ink, I am not at liberty to say how I know this, but it is the same stuff you pay way too much for. Spend $100 dollars on an "ink refill station", and you will get two sets of cartridges, full, ready to go, and these are refillable. They give you the syringes necessary to refill them and huge bottles of ink, enough to last you around a year or more. Go to their website, call them, they actually answer the phone, tell them what printer you want, what you want to do, (Get Pigment Ink if your printer can handle it, Dye ink fades from Sunlight, and runs if water touches it, Pigment Ink is Archival, up to 99 years or more, I believe, much longer if kept out of the Sun ). They will tell you what to write on the online ordering form. They have never messed up and order, and they sell the best ink you can buy. They also have CISS methods available.